0cddd8f023
(this commit is just the first stage). Also add various GIANT_ macros to formalize the removal of Giant, making it easy to test in a more piecemeal fashion. These macros will allow us to test fine-grained locks to a degree before removing Giant, and also after, and to remove Giant in a piecemeal fashion via sysctl's on those subsystems which the authors believe can operate without Giant.
799 lines
18 KiB
C
799 lines
18 KiB
C
/*
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed
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* to Berkeley by John Heidemann of the UCLA Ficus project.
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*
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* Source: * @(#)i405_init.c 2.10 92/04/27 UCLA Ficus project
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*
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* $FreeBSD$
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/bio.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/malloc.h>
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#include <sys/mount.h>
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#include <sys/mutex.h>
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#include <sys/unistd.h>
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#include <sys/vnode.h>
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#include <sys/poll.h>
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#include <machine/limits.h>
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#include <vm/vm.h>
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#include <vm/vm_object.h>
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#include <vm/vm_extern.h>
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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#include <vm/vm_page.h>
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#include <vm/vm_pager.h>
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#include <vm/vnode_pager.h>
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#include <vm/vm_zone.h>
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static int vop_nolookup __P((struct vop_lookup_args *));
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static int vop_nostrategy __P((struct vop_strategy_args *));
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/*
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* This vnode table stores what we want to do if the filesystem doesn't
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* implement a particular VOP.
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*
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* If there is no specific entry here, we will return EOPNOTSUPP.
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*
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*/
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vop_t **default_vnodeop_p;
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static struct vnodeopv_entry_desc default_vnodeop_entries[] = {
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{ &vop_default_desc, (vop_t *) vop_eopnotsupp },
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{ &vop_advlock_desc, (vop_t *) vop_einval },
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{ &vop_bmap_desc, (vop_t *) vop_stdbmap },
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{ &vop_close_desc, (vop_t *) vop_null },
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{ &vop_createvobject_desc, (vop_t *) vop_stdcreatevobject },
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{ &vop_destroyvobject_desc, (vop_t *) vop_stddestroyvobject },
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{ &vop_fsync_desc, (vop_t *) vop_null },
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{ &vop_getpages_desc, (vop_t *) vop_stdgetpages },
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{ &vop_getvobject_desc, (vop_t *) vop_stdgetvobject },
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{ &vop_inactive_desc, (vop_t *) vop_stdinactive },
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{ &vop_ioctl_desc, (vop_t *) vop_enotty },
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{ &vop_islocked_desc, (vop_t *) vop_noislocked },
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{ &vop_lease_desc, (vop_t *) vop_null },
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{ &vop_lock_desc, (vop_t *) vop_nolock },
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{ &vop_lookup_desc, (vop_t *) vop_nolookup },
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{ &vop_open_desc, (vop_t *) vop_null },
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{ &vop_pathconf_desc, (vop_t *) vop_einval },
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{ &vop_putpages_desc, (vop_t *) vop_stdputpages },
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{ &vop_poll_desc, (vop_t *) vop_nopoll },
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{ &vop_readlink_desc, (vop_t *) vop_einval },
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{ &vop_revoke_desc, (vop_t *) vop_revoke },
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{ &vop_strategy_desc, (vop_t *) vop_nostrategy },
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{ &vop_unlock_desc, (vop_t *) vop_nounlock },
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{ NULL, NULL }
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};
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static struct vnodeopv_desc default_vnodeop_opv_desc =
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{ &default_vnodeop_p, default_vnodeop_entries };
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VNODEOP_SET(default_vnodeop_opv_desc);
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int
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vop_eopnotsupp(struct vop_generic_args *ap)
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{
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/*
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printf("vop_notsupp[%s]\n", ap->a_desc->vdesc_name);
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*/
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return (EOPNOTSUPP);
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}
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int
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vop_ebadf(struct vop_generic_args *ap)
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{
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return (EBADF);
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}
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int
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vop_enotty(struct vop_generic_args *ap)
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{
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return (ENOTTY);
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}
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int
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vop_einval(struct vop_generic_args *ap)
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{
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return (EINVAL);
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}
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int
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vop_null(struct vop_generic_args *ap)
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{
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return (0);
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}
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int
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vop_defaultop(struct vop_generic_args *ap)
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{
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return (VOCALL(default_vnodeop_p, ap->a_desc->vdesc_offset, ap));
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}
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int
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vop_panic(struct vop_generic_args *ap)
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{
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panic("filesystem goof: vop_panic[%s]", ap->a_desc->vdesc_name);
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}
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static int
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vop_nolookup(ap)
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struct vop_lookup_args /* {
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struct vnode *a_dvp;
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struct vnode **a_vpp;
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struct componentname *a_cnp;
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} */ *ap;
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{
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*ap->a_vpp = NULL;
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return (ENOTDIR);
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}
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/*
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* vop_nostrategy:
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*
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* Strategy routine for VFS devices that have none.
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*
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* BIO_ERROR and B_INVAL must be cleared prior to calling any strategy
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* routine. Typically this is done for a BIO_READ strategy call.
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* Typically B_INVAL is assumed to already be clear prior to a write
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* and should not be cleared manually unless you just made the buffer
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* invalid. BIO_ERROR should be cleared either way.
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*/
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static int
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vop_nostrategy (struct vop_strategy_args *ap)
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{
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printf("No strategy for buffer at %p\n", ap->a_bp);
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vprint("", ap->a_vp);
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vprint("", ap->a_bp->b_vp);
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ap->a_bp->b_ioflags |= BIO_ERROR;
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ap->a_bp->b_error = EOPNOTSUPP;
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bufdone(ap->a_bp);
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return (EOPNOTSUPP);
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}
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int
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vop_stdpathconf(ap)
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struct vop_pathconf_args /* {
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struct vnode *a_vp;
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int a_name;
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int *a_retval;
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} */ *ap;
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{
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switch (ap->a_name) {
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case _PC_LINK_MAX:
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*ap->a_retval = LINK_MAX;
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return (0);
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case _PC_MAX_CANON:
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*ap->a_retval = MAX_CANON;
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return (0);
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case _PC_MAX_INPUT:
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*ap->a_retval = MAX_INPUT;
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return (0);
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case _PC_PIPE_BUF:
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*ap->a_retval = PIPE_BUF;
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return (0);
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case _PC_CHOWN_RESTRICTED:
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*ap->a_retval = 1;
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return (0);
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case _PC_VDISABLE:
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*ap->a_retval = _POSIX_VDISABLE;
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return (0);
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default:
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return (EINVAL);
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}
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/* NOTREACHED */
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}
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/*
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* Standard lock, unlock and islocked functions.
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*
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* These depend on the lock structure being the first element in the
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* inode, ie: vp->v_data points to the the lock!
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*/
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int
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vop_stdlock(ap)
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struct vop_lock_args /* {
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struct vnode *a_vp;
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int a_flags;
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struct proc *a_p;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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#ifndef DEBUG_LOCKS
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return (lockmgr(&vp->v_lock, ap->a_flags, &vp->v_interlock, ap->a_p));
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#else
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return (debuglockmgr(&vp->v_lock, ap->a_flags, &vp->v_interlock,
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ap->a_p, "vop_stdlock", vp->filename, vp->line));
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#endif
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}
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int
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vop_stdunlock(ap)
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struct vop_unlock_args /* {
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struct vnode *a_vp;
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int a_flags;
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struct proc *a_p;
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} */ *ap;
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{
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struct vnode *vp = ap->a_vp;
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return (lockmgr(&vp->v_lock, ap->a_flags | LK_RELEASE, &vp->v_interlock,
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ap->a_p));
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}
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int
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vop_stdislocked(ap)
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struct vop_islocked_args /* {
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struct vnode *a_vp;
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struct proc *a_p;
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} */ *ap;
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{
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return (lockstatus(&ap->a_vp->v_lock, ap->a_p));
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}
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int
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vop_stdinactive(ap)
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struct vop_inactive_args /* {
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struct vnode *a_vp;
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struct proc *a_p;
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} */ *ap;
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{
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VOP_UNLOCK(ap->a_vp, 0, ap->a_p);
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return (0);
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}
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/*
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* Return true for select/poll.
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*/
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int
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vop_nopoll(ap)
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struct vop_poll_args /* {
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struct vnode *a_vp;
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int a_events;
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struct ucred *a_cred;
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struct proc *a_p;
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} */ *ap;
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{
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/*
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* Return true for read/write. If the user asked for something
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* special, return POLLNVAL, so that clients have a way of
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* determining reliably whether or not the extended
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* functionality is present without hard-coding knowledge
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* of specific filesystem implementations.
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*/
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if (ap->a_events & ~POLLSTANDARD)
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return (POLLNVAL);
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return (ap->a_events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM));
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}
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|
|
/*
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* Implement poll for local filesystems that support it.
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*/
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int
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vop_stdpoll(ap)
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struct vop_poll_args /* {
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struct vnode *a_vp;
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int a_events;
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struct ucred *a_cred;
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struct proc *a_p;
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} */ *ap;
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{
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if (ap->a_events & ~POLLSTANDARD)
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return (vn_pollrecord(ap->a_vp, ap->a_p, ap->a_events));
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return (ap->a_events & (POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM));
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}
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|
|
/*
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|
* Stubs to use when there is no locking to be done on the underlying object.
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|
* A minimal shared lock is necessary to ensure that the underlying object
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|
* is not revoked while an operation is in progress. So, an active shared
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|
* count is maintained in an auxillary vnode lock structure.
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*/
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int
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vop_sharedlock(ap)
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struct vop_lock_args /* {
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struct vnode *a_vp;
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int a_flags;
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struct proc *a_p;
|
|
} */ *ap;
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{
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|
/*
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|
* This code cannot be used until all the non-locking filesystems
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* (notably NFS) are converted to properly lock and release nodes.
|
|
* Also, certain vnode operations change the locking state within
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* the operation (create, mknod, remove, link, rename, mkdir, rmdir,
|
|
* and symlink). Ideally these operations should not change the
|
|
* lock state, but should be changed to let the caller of the
|
|
* function unlock them. Otherwise all intermediate vnode layers
|
|
* (such as union, umapfs, etc) must catch these functions to do
|
|
* the necessary locking at their layer. Note that the inactive
|
|
* and lookup operations also change their lock state, but this
|
|
* cannot be avoided, so these two operations will always need
|
|
* to be handled in intermediate layers.
|
|
*/
|
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struct vnode *vp = ap->a_vp;
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int vnflags, flags = ap->a_flags;
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|
|
|
switch (flags & LK_TYPE_MASK) {
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case LK_DRAIN:
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vnflags = LK_DRAIN;
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break;
|
|
case LK_EXCLUSIVE:
|
|
#ifdef DEBUG_VFS_LOCKS
|
|
/*
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|
* Normally, we use shared locks here, but that confuses
|
|
* the locking assertions.
|
|
*/
|
|
vnflags = LK_EXCLUSIVE;
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break;
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|
#endif
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case LK_SHARED:
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vnflags = LK_SHARED;
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|
break;
|
|
case LK_UPGRADE:
|
|
case LK_EXCLUPGRADE:
|
|
case LK_DOWNGRADE:
|
|
return (0);
|
|
case LK_RELEASE:
|
|
default:
|
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panic("vop_sharedlock: bad operation %d", flags & LK_TYPE_MASK);
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}
|
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if (flags & LK_INTERLOCK)
|
|
vnflags |= LK_INTERLOCK;
|
|
#ifndef DEBUG_LOCKS
|
|
return (lockmgr(&vp->v_lock, vnflags, &vp->v_interlock, ap->a_p));
|
|
#else
|
|
return (debuglockmgr(&vp->v_lock, vnflags, &vp->v_interlock, ap->a_p,
|
|
"vop_sharedlock", vp->filename, vp->line));
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Stubs to use when there is no locking to be done on the underlying object.
|
|
* A minimal shared lock is necessary to ensure that the underlying object
|
|
* is not revoked while an operation is in progress. So, an active shared
|
|
* count is maintained in an auxillary vnode lock structure.
|
|
*/
|
|
int
|
|
vop_nolock(ap)
|
|
struct vop_lock_args /* {
|
|
struct vnode *a_vp;
|
|
int a_flags;
|
|
struct proc *a_p;
|
|
} */ *ap;
|
|
{
|
|
#ifdef notyet
|
|
/*
|
|
* This code cannot be used until all the non-locking filesystems
|
|
* (notably NFS) are converted to properly lock and release nodes.
|
|
* Also, certain vnode operations change the locking state within
|
|
* the operation (create, mknod, remove, link, rename, mkdir, rmdir,
|
|
* and symlink). Ideally these operations should not change the
|
|
* lock state, but should be changed to let the caller of the
|
|
* function unlock them. Otherwise all intermediate vnode layers
|
|
* (such as union, umapfs, etc) must catch these functions to do
|
|
* the necessary locking at their layer. Note that the inactive
|
|
* and lookup operations also change their lock state, but this
|
|
* cannot be avoided, so these two operations will always need
|
|
* to be handled in intermediate layers.
|
|
*/
|
|
struct vnode *vp = ap->a_vp;
|
|
int vnflags, flags = ap->a_flags;
|
|
|
|
switch (flags & LK_TYPE_MASK) {
|
|
case LK_DRAIN:
|
|
vnflags = LK_DRAIN;
|
|
break;
|
|
case LK_EXCLUSIVE:
|
|
case LK_SHARED:
|
|
vnflags = LK_SHARED;
|
|
break;
|
|
case LK_UPGRADE:
|
|
case LK_EXCLUPGRADE:
|
|
case LK_DOWNGRADE:
|
|
return (0);
|
|
case LK_RELEASE:
|
|
default:
|
|
panic("vop_nolock: bad operation %d", flags & LK_TYPE_MASK);
|
|
}
|
|
if (flags & LK_INTERLOCK)
|
|
vnflags |= LK_INTERLOCK;
|
|
return(lockmgr(&vp->v_lock, vnflags, &vp->v_interlock, ap->a_p));
|
|
#else /* for now */
|
|
/*
|
|
* Since we are not using the lock manager, we must clear
|
|
* the interlock here.
|
|
*/
|
|
if (ap->a_flags & LK_INTERLOCK)
|
|
mtx_unlock(&ap->a_vp->v_interlock);
|
|
return (0);
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Do the inverse of vop_nolock, handling the interlock in a compatible way.
|
|
*/
|
|
int
|
|
vop_nounlock(ap)
|
|
struct vop_unlock_args /* {
|
|
struct vnode *a_vp;
|
|
int a_flags;
|
|
struct proc *a_p;
|
|
} */ *ap;
|
|
{
|
|
|
|
/*
|
|
* Since we are not using the lock manager, we must clear
|
|
* the interlock here.
|
|
*/
|
|
if (ap->a_flags & LK_INTERLOCK)
|
|
mtx_unlock(&ap->a_vp->v_interlock);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Return whether or not the node is in use.
|
|
*/
|
|
int
|
|
vop_noislocked(ap)
|
|
struct vop_islocked_args /* {
|
|
struct vnode *a_vp;
|
|
struct proc *a_p;
|
|
} */ *ap;
|
|
{
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Return our mount point, as we will take charge of the writes.
|
|
*/
|
|
int
|
|
vop_stdgetwritemount(ap)
|
|
struct vop_getwritemount_args /* {
|
|
struct vnode *a_vp;
|
|
struct mount **a_mpp;
|
|
} */ *ap;
|
|
{
|
|
|
|
*(ap->a_mpp) = ap->a_vp->v_mount;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vop_stdcreatevobject(ap)
|
|
struct vop_createvobject_args /* {
|
|
struct vnode *vp;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct ucred *cred = ap->a_cred;
|
|
struct proc *p = ap->a_p;
|
|
struct vattr vat;
|
|
vm_object_t object;
|
|
int error = 0;
|
|
|
|
GIANT_REQUIRED;
|
|
|
|
if (!vn_isdisk(vp, NULL) && vn_canvmio(vp) == FALSE)
|
|
return (0);
|
|
|
|
retry:
|
|
if ((object = vp->v_object) == NULL) {
|
|
if (vp->v_type == VREG || vp->v_type == VDIR) {
|
|
if ((error = VOP_GETATTR(vp, &vat, cred, p)) != 0)
|
|
goto retn;
|
|
object = vnode_pager_alloc(vp, vat.va_size, 0, 0);
|
|
} else if (devsw(vp->v_rdev) != NULL) {
|
|
/*
|
|
* This simply allocates the biggest object possible
|
|
* for a disk vnode. This should be fixed, but doesn't
|
|
* cause any problems (yet).
|
|
*/
|
|
object = vnode_pager_alloc(vp, IDX_TO_OFF(INT_MAX), 0, 0);
|
|
} else {
|
|
goto retn;
|
|
}
|
|
/*
|
|
* Dereference the reference we just created. This assumes
|
|
* that the object is associated with the vp.
|
|
*/
|
|
object->ref_count--;
|
|
vp->v_usecount--;
|
|
} else {
|
|
if (object->flags & OBJ_DEAD) {
|
|
VOP_UNLOCK(vp, 0, p);
|
|
tsleep(object, PVM, "vodead", 0);
|
|
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p);
|
|
goto retry;
|
|
}
|
|
}
|
|
|
|
KASSERT(vp->v_object != NULL, ("vfs_object_create: NULL object"));
|
|
vp->v_flag |= VOBJBUF;
|
|
|
|
retn:
|
|
return (error);
|
|
}
|
|
|
|
int
|
|
vop_stddestroyvobject(ap)
|
|
struct vop_destroyvobject_args /* {
|
|
struct vnode *vp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
vm_object_t obj = vp->v_object;
|
|
|
|
GIANT_REQUIRED;
|
|
|
|
if (vp->v_object == NULL)
|
|
return (0);
|
|
|
|
if (obj->ref_count == 0) {
|
|
/*
|
|
* vclean() may be called twice. The first time
|
|
* removes the primary reference to the object,
|
|
* the second time goes one further and is a
|
|
* special-case to terminate the object.
|
|
*/
|
|
vm_object_terminate(obj);
|
|
} else {
|
|
/*
|
|
* Woe to the process that tries to page now :-).
|
|
*/
|
|
vm_pager_deallocate(obj);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vop_stdgetvobject(ap)
|
|
struct vop_getvobject_args /* {
|
|
struct vnode *vp;
|
|
struct vm_object **objpp;
|
|
} */ *ap;
|
|
{
|
|
struct vnode *vp = ap->a_vp;
|
|
struct vm_object **objpp = ap->a_objpp;
|
|
|
|
if (objpp)
|
|
*objpp = vp->v_object;
|
|
return (vp->v_object ? 0 : EINVAL);
|
|
}
|
|
|
|
int
|
|
vop_stdbmap(ap)
|
|
struct vop_bmap_args /* {
|
|
struct vnode *a_vp;
|
|
daddr_t a_bn;
|
|
struct vnode **a_vpp;
|
|
daddr_t *a_bnp;
|
|
int *a_runp;
|
|
int *a_runb;
|
|
} */ *ap;
|
|
{
|
|
|
|
if (ap->a_vpp != NULL)
|
|
*ap->a_vpp = ap->a_vp;
|
|
if (ap->a_bnp != NULL)
|
|
*ap->a_bnp = ap->a_bn * btodb(ap->a_vp->v_mount->mnt_stat.f_iosize);
|
|
if (ap->a_runp != NULL)
|
|
*ap->a_runp = 0;
|
|
if (ap->a_runb != NULL)
|
|
*ap->a_runb = 0;
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vop_stdgetpages(ap)
|
|
struct vop_getpages_args /* {
|
|
struct vnode *a_vp;
|
|
vm_page_t *a_m;
|
|
int a_count;
|
|
int a_reqpage;
|
|
vm_ooffset_t a_offset;
|
|
} */ *ap;
|
|
{
|
|
|
|
return vnode_pager_generic_getpages(ap->a_vp, ap->a_m,
|
|
ap->a_count, ap->a_reqpage);
|
|
}
|
|
|
|
int
|
|
vop_stdputpages(ap)
|
|
struct vop_putpages_args /* {
|
|
struct vnode *a_vp;
|
|
vm_page_t *a_m;
|
|
int a_count;
|
|
int a_sync;
|
|
int *a_rtvals;
|
|
vm_ooffset_t a_offset;
|
|
} */ *ap;
|
|
{
|
|
|
|
return vnode_pager_generic_putpages(ap->a_vp, ap->a_m, ap->a_count,
|
|
ap->a_sync, ap->a_rtvals);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* vfs default ops
|
|
* used to fill the vfs fucntion table to get reasonable default return values.
|
|
*/
|
|
int
|
|
vfs_stdmount (mp, path, data, ndp, p)
|
|
struct mount *mp;
|
|
char *path;
|
|
caddr_t data;
|
|
struct nameidata *ndp;
|
|
struct proc *p;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vfs_stdunmount (mp, mntflags, p)
|
|
struct mount *mp;
|
|
int mntflags;
|
|
struct proc *p;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vfs_stdroot (mp, vpp)
|
|
struct mount *mp;
|
|
struct vnode **vpp;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdstatfs (mp, sbp, p)
|
|
struct mount *mp;
|
|
struct statfs *sbp;
|
|
struct proc *p;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdvptofh (vp, fhp)
|
|
struct vnode *vp;
|
|
struct fid *fhp;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdstart (mp, flags, p)
|
|
struct mount *mp;
|
|
int flags;
|
|
struct proc *p;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vfs_stdquotactl (mp, cmds, uid, arg, p)
|
|
struct mount *mp;
|
|
int cmds;
|
|
uid_t uid;
|
|
caddr_t arg;
|
|
struct proc *p;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdsync (mp, waitfor, cred, p)
|
|
struct mount *mp;
|
|
int waitfor;
|
|
struct ucred *cred;
|
|
struct proc *p;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vfs_stdvget (mp, ino, vpp)
|
|
struct mount *mp;
|
|
ino_t ino;
|
|
struct vnode **vpp;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdfhtovp (mp, fhp, vpp)
|
|
struct mount *mp;
|
|
struct fid *fhp;
|
|
struct vnode **vpp;
|
|
{
|
|
return (EOPNOTSUPP);
|
|
}
|
|
|
|
int
|
|
vfs_stdinit (vfsp)
|
|
struct vfsconf *vfsp;
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
vfs_stduninit (vfsp)
|
|
struct vfsconf *vfsp;
|
|
{
|
|
return(0);
|
|
}
|
|
|
|
int
|
|
vfs_stdextattrctl(mp, cmd, filename_vp, attrnamespace, attrname, p)
|
|
struct mount *mp;
|
|
int cmd;
|
|
struct vnode *filename_vp;
|
|
int attrnamespace;
|
|
const char *attrname;
|
|
struct proc *p;
|
|
{
|
|
return(EOPNOTSUPP);
|
|
}
|
|
|
|
/* end of vfs default ops */
|